<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>多库冲突</title>
</head>
<body>

<button id="plan-a-btn" type="button">方案a</button>
<br/>
<button id="plan-b-btn" type="button">方案b</button>
<br/>
<button id="plan-c-btn" type="button">方案c</button>
<br/>

<script type="text/javascript" src="../../script/jquery-3.2.1.js"></script>
<script type="text/javascript">
    $(() => {

        $("#plan-a-btn")[0].onclick = () => {
            jQuery.noConflict();
            console.log(jQuery("#plan-a-btn").text());
        };

        $("#plan-b-btn")[0].onclick = () => {
            let my$ = jQuery.noConflict();
            console.log(my$("#plan-b-btn").text());
        };

        $("#plan-c-btn")[0].onclick = () => {
            jQuery.noConflict();
            jQuery($ => {
                console.log($("#plan-c-btn").text());
            });
        };
    });
</script>

</body>
</html>